自定义类

class person 
{
    String name;
    int age;
    String sex;
}

class    Demo01
{
    public static void main(String[] args) 
    {
        //创建对象
        person p=new person();
        p.name="毕思霖";
        p.sex="男";
        System.out.println(p.name);
        System.out.println(p.sex);
        System.out.println(p.age);
        System.out.println(p);
        person p2=new person();
        System.out.println(p2.name);
        System.out.println(p2.sex);
        System.out.println(p2.age);
        System.out.println(p2);
    }
}